Loveland, Colo. Oct 11, 1907
Left Ft. Collins at 8 p.m. and reached Loveland at 8:30, put up at Bushnell Hotel. Got team at ---- ((left blank)) stable and drove up Big Thompson thence up Buckhorn Creek to plot the Arkins fold. West limb of anticline, “Dakota” sandstone and Niobrara dips SW 70˚ to 75˚. W limb of syncline much more gentle as also E limb of anticline. The Dakota forms a high narrow dyke of the hard sandstone. The Fountain is in escarpment. The valley west of granite intrusion is covered, mostly. The upper Lyons is hard, light colored, exactly as in the quarries NW of Colorado Sanatorium at Boulder. I have not made copious notes on the Arkins anticline and syncline, because they are normal en echelon folds and the map gives about all the data. At the northern end of
